Analysis of Rattleback Chaotic Oscillations by Michael Hanias, Stavros G. Stavrinides, Santo Banerjee

Get full text

Thermodynamic Analysis of the Static Spherically Symmetric Field Equations in Rastall Theory by Hooman Moradpour, Ines G. Salako

Get full text

Numerical Investigation of Vertical Plunging Jet Using a Hybrid Multifluid–VOF Multiphase CFD Solver by Olabanji Y. Shonibare, Kent E. Wardle

Get full text

On the Recursive Sequence xn=1+∑i=1kαixn−pi/∑j=1mβjxn−qj by Stevo Stevic

Get full text

Fractional-Order Derivative Model of Rift Valley Fever in Urban Peridomestic Cycle by Saul C. Mpeshe

Get full text

The relationship of thinking styles and academic performance of students by O. A. Khalifaeva, N. Yu. Kolenkova, I. Yu. Tyurina, A. G. Fadina

“…To process the data, mathematical-statistical methods were employed: the One-Sample Kolmogorov-Smirnov Test, the Independent Samples t Test (Student Test), the Mann-Whitney U Test, the Pearson’s Correlation Coefficient, the Spearman’s Rank Correlation Coefficient. …”
Get full text

Processing streams in a monitoring cloud cluster by Alexey N. Nazarov

“…The obtained results made it possible to develop mathematical models of parallel DStreams from sources processed in a cloud cluster via Hadoop technology using the micro-batch architecture of the Spark Streaming module. …”
Get full text

TRENDS IN GLOBAL TRANSFORMATIONS OF COUNTRIES IN THE CONTEXT OF THEIR DEVELOPMENT AND ENSURING NATIONAL SECURITY by Olena A. Parshyna, Marharyta Yu. Parshyna, Tetiana V. Chumak, Ljudmila I. Yarmolenko

“…The system of indicators and criteria within the Fragile States Index reveals a significant deterioration in 2023 compared to 2013. Mathematical models of changes in the Fragile States Index for China and Indonesia have been constructed, along with an assessment of their accuracy, enabling the forecasting of strengthening trends for these countries in future periods. …”
Get full text

Chemometric Methods—A Valuable Tool for Investigating the Interactions Between Antifungal Drugs (Including Antifungal Antibiotics) and Food by Agnieszka Wiesner-Kiełczewska, Paweł Zagrodzki, Alicja Gawalska, Paweł Paśko

“…Chemometrics uses statistical and mathematical methods to analyze multivariate chemical data, enabling the identification of key correlations and simplifying data interpretation. …”
Get full text

Russian Higher School: Forced Distance Learning and Planned Switch to Distance Learning During Pandemic (Experience of Sociological Analysis) by I. A. Aleshkovski, A. T. Gasparishvili, O. V. Krukhmaleva, N. P. Narbut, N. E. Savina

“…Also, possible forms are considered that  combine distance and full-time education, and recommendations are proposed on how to change the tone in perceiving inevitable informational and communication transformations on the part of teachers.This research was performed according to the Development program of the  Interdisciplinary Scientific and Educational School of Lomonosov Moscow  State University «Mathematical methods of complex systems analysis».…”
Get full text

Design of a Ka-band Wideband Multibeam Phased Array by GUAN Jin, SUN Jie, XING Chen, LIAO Yi, LI Yi

“…【Methods】This paper theoretically establishes and derives a general vector mathematical simulation model of phased array antenna pattern, studies the subarray division, aperture effect, and crossing time of phased array antenna, and designs a broadband multibeam phased array system based on the combination of element-level electro-shift phase shift and sub-array stage optical-delay. …”
Get full text

Determining the Height of Water-Flowing Fractured Zone in Bedrock-Soil Layer in a Jurassic Coalfield in Northern Shaanxi, China by Jie Feng, Sujian Wang, Enke Hou, Xiang Ding, Huijun Duan

“…The microresistivity scanning imaging results were consistent with those obtained by other methods. (2) Based on the thickness of the soil layer and the bedrock, the height model of the water-flowing fracture zone was divided into four regions, that is, the thick bedrock-thick soil layer region, thick bedrock-thin soil layer region, thin bedrock-thin soil layer region, and thin bedrock-thick soil layer region. A mathematical model describing the difference between the thickness of the water-flowing fractured zone and the bedrock and the thickness of the soil under the condition of bedrock-soil was established. (3) We conclude that microresistivity scanning imaging technology can accurately detect the height of the water-flowing fractured zone in a soil layer, and the apparent density logging and long-range gamma logging can precisely detect the height of the water-flowing fractured zone in bedrock. …”
Get full text

Scare Behavior Diffusion Model of Health Food Safety Based on Complex Network by Jun Luo, Jiepeng Wang, Yongle Zhao, Tingqiang Chen

“…Subsequently, a computer mathematical simulation is performed to explore the characteristics and laws of the evolution of health food safety scare behavior diffusion. …”
Get full text

The Law of Fracture Evolution of Overlying Strata and Gas Emission in Goaf under the Influence of Mining by Cheng Cheng, Xiaoyu Cheng, Rui Yu, Wenping Yue, Chao Liu

“…The mine is characterized by overlying strata fracture in goaf during the process of working face mining. A mathematical model of gas source emission from the working face and gas migration and the finite element COMSOL software were used to simulate the law of gas migration in the region with overlying strata fissures under the influence of mining. …”
Get full text

Evaluation of indirect indices in the insulin resistance assessment in patients with different body mass index by Lejla Čano Dedić, Arzija Pašalić, Emsel Papić, Emir Begagić, Sabina Šečić Selimović, Mario Gazibarić, Sabina Šegalo

“…Indirect indices based on mathematical models and derived from laboratory parameters have become increasingly popular in the past two decades. …”
Get full text

Shock reaction model for impact energy release behavior of Al/PTFE reactive material by Bao-yue Guo, Ke-rong Ren, Xia-yin Ma, Gan Li, Cai-min Huang, Zhi-bin Li, Rong Chen

“…The shock reaction model can describe the chemical reaction behavior of materials during shock compression. The mathematical expressions, programming implementation principles, and methods for obtaining model parameters of the shock reaction model are elaborated. …”
Get full text

The influence features of individual factors on EU countries’ energy markets by Vladyslav Honcharenko, Svitlana Kasyan, Anatolii Filin

“…To assess the influence degree of energy market indicators on macroeconomic development, which allows to identify the important factors for analysis and to indicate the general position of energy markets in the economy there are used following general scientific methods: systematic, logical and descriptive; analysis and synthesis; statistical; economic-mathematical modeling, namely the construction of a correlation-regression model. …”
Get full text

Interpersonal dependence and differential types of reflection in students – boys and girls by O. V. Myloslavska

“…The first group included of 45 boys, the second – 51 girls. For the mathematical processing of data the Spearman rank correlation coefficient was used. …”
Get full text

The Influence of Occupational Therapy on College Students’ Home Physical Exercise Behavior and Mental Health Status under the Artificial Intelligence Technology by Chao SONG, G. E. Sha, Wanxiang Yao, Linhai YANG

“…Second, descriptive statistics, correlation analysis, independent sample t-test, and variance analysis were carried out on the survey results using mathematical statistics methods and big data technology. …”
Get full text

Evolution of CFD as an engineering science. A personal perspective with emphasis on the finite volume method by Runchal, Akshai Kumar

“…For many important applications, we lack both the physics and the mathematical tools to adequately understand the behavior of fluids. …”
Get full text